ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,487, issued on Dec. 9, was assigned to KAO Corp. (Tokyo).
"Method for producing silica microcapsule" was invented by Yoshito Koga (Wakayama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a silica microcapsule having a shell containing silica as a constituent component and a core containing one or more organic compounds inside the shell. The method includes subjecting an emulsified liquid obtained by emulsifying an aqueous phase component containing a cationic surfactant and an oil phase component containing one or more organic compounds and a silica source to a sol-gel reaction in the presence of one or more sulfur-conta...